Defined in 1 files as a function:
Referenced in 1 files:
Smatch caller information:
kernel/events/core.c __perf_event_read() -> perf_pmu_read()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | event | 4096-ptr_max |
| PARAM_VALUE | 0 | event->cgrp | 0,4096-ptr_max |
| PARAM_VALUE | 0 | event->ctx | 4096-ptr_max |
| PARAM_VALUE | 0 | event->group_leader | 4096-ptr_max |
| PARAM_VALUE | 0 | event->state | 1 |
| CAPPED_DATA | 0 | event | 1 |
| CAPPED_DATA | 0 | event->group_leader | 1 |
| PREEMPT_ADD | <- disables preempt | ||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| LOCK2 | &ctx->lock | ||
| HALF_LOCKED2 | flags | ||
| TYPE_LOCK | (struct perf_event_context)->lock |
kernel/events/core.c __perf_event_read() -> perf_pmu_read()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | event | 4096-ptr_max |
| PARAM_VALUE | 0 | event->cgrp | 0,4096-ptr_max |
| PARAM_VALUE | 0 | event->ctx | 4096-ptr_max |
| PARAM_VALUE | 0 | event->group_leader | 4096-ptr_max |
| PARAM_VALUE | 0 | event->pmu_ctx | 4096-ptr_max |
| PARAM_VALUE | 0 | event->pmu_ctx->pmu | 4096-ptr_max |
| PARAM_VALUE | 0 | event->state | 1 |
| CAPPED_DATA | 0 | event | 1 |
| CAPPED_DATA | 0 | event->group_leader | 1 |
| PREEMPT_ADD | <- disables preempt | ||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| LOCK2 | &ctx->lock | ||
| HALF_LOCKED2 | flags | ||
| TYPE_LOCK | (struct perf_event_context)->lock |
kernel/events/core.c __perf_event_read() -> perf_pmu_read()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | event | 4096-ptr_max |
| CAPPED_DATA | 0 | &event->sibling_list | 1 |
| PREEMPT_ADD | <- disables preempt | ||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| LOCK2 | &ctx->lock | ||
| HALF_LOCKED2 | flags | ||
| TYPE_LOCK | (struct perf_event_context)->lock |
kernel/events/core.c __perf_event_sync_stat() -> perf_pmu_read()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | event | 4096-ptr_max |
| PARAM_VALUE | 0 | event->attr.inherit_stat | 1 |
| DATA_SOURCE | 0 | event | $0 |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| LOCK2 | &ctx->lock | ||
| LOCK2 | &next_ctx->lock | ||
| LOCK2 | irq | ||
| LOCK2 | rcu_read | ||
| TYPE_LOCK | (struct perf_event_context)->lock |
kernel/events/core.c perf_output_read_group() -> perf_pmu_read()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | event | 4096-ptr_max |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| HOST_DATA | 0 | event->hw.aux_config | 0-u64max |
| HOST_DATA | 0 | event->hw.aux_paused | 0-u32max |
| HOST_DATA | 0 | event->hw.branch_reg.alloc | s32min-s32max |
| HOST_DATA | 0 | event->hw.branch_reg.config | 0-u64max |
| HOST_DATA | 0 | event->hw.branch_reg.idx | s32min-s32max |
| HOST_DATA | 0 | event->hw.branch_reg.reg | 0-u32max |
| HOST_DATA | 0 | event->hw.conf | 0-u64max |
| HOST_DATA | 0 | event->hw.conf1 | 0-u64max |
| HOST_DATA | 0 | event->hw.config | 0-u64max |
| HOST_DATA | 0 | event->hw.config1 | 0-u64max |
| HOST_DATA | 0 | event->hw.config_base | 0-u64max |
| HOST_DATA | 0 | event->hw.dyn_constraint | 0-u64max |
| HOST_DATA | 0 | event->hw.event_base | 0-u64max |
| HOST_DATA | 0 | event->hw.event_base_rdpmc | s32min-s32max |
| HOST_DATA | 0 | event->hw.extra_reg.alloc | s32min-s32max |
| HOST_DATA | 0 | event->hw.extra_reg.config | 0-u64max |
| HOST_DATA | 0 | event->hw.extra_reg.idx | s32min-s32max |
| HOST_DATA | 0 | event->hw.extra_reg.reg | 0-u32max |
| HOST_DATA | 0 | event->hw.flags | s32min-s32max |
| HOST_DATA | 0 | event->hw.hrtimer._softexpires | s64min-s64max |
| HOST_DATA | 0 | event->hw.hrtimer.is_hard | 0-1 |
| HOST_DATA | 0 | event->hw.hrtimer.is_lazy | 0-1 |
| HOST_DATA | 0 | event->hw.hrtimer.is_queued | 0-1 |
| HOST_DATA | 0 | event->hw.hrtimer.is_rel | 0-1 |
| HOST_DATA | 0 | event->hw.hrtimer.is_soft | 0-1 |
| HOST_DATA | 0 | event->hw.hrtimer.node.expires | s64min-s64max |
| HOST_DATA | 0 | event->hw.hrtimer.node.node.node.__rb_parent_color | 0-u64max |
| HOST_DATA | 0 | event->hw.idx | s32min-s32max |
| HOST_DATA | 0 | event->hw.info.address | 0-u64max |
| HOST_DATA | 0 | event->hw.info.len | 0-255 |
| HOST_DATA | 0 | event->hw.info.mask | 0-u64max |
| HOST_DATA | 0 | event->hw.info.type | 0-255 |
| HOST_DATA | 0 | event->hw.iommu_bank | 0-255 |
| HOST_DATA | 0 | event->hw.iommu_cntr | 0-255 |
| HOST_DATA | 0 | event->hw.last_cpu | s32min-s32max |
| HOST_DATA | 0 | event->hw.last_period | 0-u64max |
| HOST_DATA | 0 | event->hw.last_tag | 0-u64max |
| HOST_DATA | 0 | event->hw.padding | 0-u16max |
| HOST_DATA | 0 | event->hw.period_left.a.a.counter | s64min-s64max |
| HOST_DATA | 0 | event->hw.prev_count.a.a.counter | s64min-s64max |
| HOST_DATA | 0 | event->hw.ptsc | 0-u64max |
| HOST_DATA | 0 | event->hw.pwr_acc | 0-u64max |
| HOST_DATA | 0 | event->hw.saved_metric | 0-u64max |
| HOST_DATA | 0 | event->hw.saved_slots | 0-u64max |
| UNITS | 0 | event | unit_byte |
| LOCK2 | flags | ||
| LOCK2 | rcu_read | ||
| HALF_LOCKED2 | &parent_event->child_mutex |
kernel/events/core.c perf_output_read_group() -> perf_pmu_read()
| Type | Parameter | Key | Value |
|---|---|---|---|
| PARAM_VALUE | 0 | event | 4096-ptr_max |
| CAPPED_DATA | 0 | &event->sibling_list | 1 |
| PREEMPT_ADD | |||
| RX_PATH | |||
| TASK_NOT_RUNNING | |||
| NOCHECK_CALL | |||
| UNITS | 0 | event | unit_byte |
| LOCK2 | flags | ||
| LOCK2 | rcu_read | ||
| HALF_LOCKED2 | &parent_event->child_mutex |